What’s Vulnerable › Vulnerabilities
CVE-2026-27147: GetSimple CMS: Stored Cross-Site Scripting (XSS) via SVG File Upload (Authenticated)
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-02-21 · updated 2026-06-17
- Weakness: CWE-79
Description
GetSimple CMS is a content management system. All versions of GetSimple CMS are vulnerable to XSS through SVG file uploads. Authenticated users can upload SVG files via the administrative upload functionality, but they are not properly sanitized or restricted, allowing an attacker to embed malicious JavaScript. When the uploaded SVG file is accessed, the script executes in the browser. This issue does not have a fix at the time of publication.
Affected products
- GetSimpleCMS-CE: through 3.3.22
References
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